公开(公告)号：EP2781483B1

公开(公告)日：2018-05-23

申请号：EP12849309.5

申请日：2012-11-14

申请人： Denka Company Limited ,  Sei Corporation

发明人： KAWASAKI, Takashi ,  YOSHINO, Nobuyuki ,  MURATA, Hiroshi ,  SAWAI, Takehiko ,  SAITO, Shinji ,  URAO, Kazunori

IPC分类号： C01B25/45 ,  H01M4/136 ,  H01M4/36 ,  H01M4/58 ,  H01M4/583 ,  H01M4/02 ,  H01M10/052

CPC分类号： H01M4/366 ,  C01B25/45 ,  C01B32/05 ,  H01M4/136 ,  H01M4/5825 ,  H01M4/583 ,  H01M10/052 ,  H01M2004/021 ,  Y02T10/7011

摘要： Provided is positive electrode material for a highly safe lithium-ion secondary battery that can charge and discharge a large current while having long service life. Disclosed are composite particles comprising: particles of lithium-containing phosphate; and carbon coating comprising at least one carbon material selected from the group consisting of (i) fibrous carbon material, (ii) chain-like carbon material, and (iii) carbon material produced by linking together fibrous carbon material and chain-like carbon material, wherein each particle is coated with the carbon coating. The fibrous carbon material is preferably a carbon nanotube with an average fiber size of 5 to 200 nm. The chain-like carbon material is preferably carbon black produced by linking, like a chain, primary particles with an average particle size of 10 to 100 nm. The lithium-containing phosphate is preferably LiFePO 4 , LiMnPO 4 , LiMn X Fe (1-X) PO 4 , LiCoPO 4 , or Li 3 V 2 (PO 4 ) 3 .

公开(公告)号：EP2698851B1

公开(公告)日：2018-12-12

申请号：EP11863482.3

申请日：2011-07-07

申请人： Sei Corporation ,  Denka Company Limited

发明人： SAWAI, Takehiko ,  SAITO, Shinji ,  URAO, Kazunori ,  KAWASAKI, Takashi

IPC分类号： H01M4/133 ,  H01M4/587 ,  H01M4/36 ,  H01M4/48 ,  H01M4/62 ,  H01M10/052 ,  H01M10/0566 ,  H01M10/0587 ,  H01M4/38 ,  H01M4/13 ,  H01M4/131 ,  H01M4/134 ,  H01M4/139 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/58 ,  H01M4/583

CPC分类号： H01M4/483 ,  H01M4/13 ,  H01M4/131 ,  H01M4/133 ,  H01M4/134 ,  H01M4/139 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/36 ,  H01M4/366 ,  H01M4/38 ,  H01M4/386 ,  H01M4/387 ,  H01M4/48 ,  H01M4/5825 ,  H01M4/583 ,  H01M4/587 ,  H01M4/625 ,  H01M10/052 ,  Y02E60/122

摘要： The present invention provides a negative-electrode material for a lithium secondary battery which has a very low resistance, allows the lithium secondary battery to be charged and discharged (high output) at a high current and have a high capacity, and achieve a cycle life to such an extent that the lithium secondary battery can be mounted on a vehicle. The electrode material is composed of (a) at least one active substance (4) selected from among a metal oxide containing metal therein and an alloy material each of which is coated with a carbon material and has a graphene phase or an amorphous phase (8) on at least a surface thereof, (b) a graphite-based carbon material (5) having the graphene phase or the amorphous phase on at least a surface thereof; and (c) carbon material (6) other than the graphite-based carbon material and having the graphene phase or the amorphous phase on at least a surface thereof. The active substance (4), the graphite-based carbon material (5), and the carbon material (6) other than the graphite-based carbon material fuse the graphene phase or the amorphous phase (8a, 8b) thereof together and bond them to each other to form a composite active substance (7) including composed of the active substance including one active substance selected from among the metal oxide containing the metal and the alloy material

公开(公告)号：EP2781483B8

公开(公告)日：2018-10-17

申请号：EP12849309.5

申请日：2012-11-14

申请人： Denka Company Limited ,  SEI Corporation

发明人： KAWASAKI, Takashi ,  YOSHINO, Nobuyuki ,  MURATA, Hiroshi ,  SAWAI, Takehiko ,  SAITO, Shinji ,  URAO, Kazunori

IPC分类号： C01B25/45 ,  H01M4/136 ,  H01M4/36 ,  H01M4/58 ,  H01M4/583 ,  H01M4/02 ,  H01M10/052

CPC分类号： H01M4/366 ,  C01B25/45 ,  C01B32/05 ,  H01M4/136 ,  H01M4/5825 ,  H01M4/583 ,  H01M10/052 ,  H01M2004/021 ,  Y02T10/7011

摘要： Provided is positive electrode material for a highly safe lithium-ion secondary battery that can charge and discharge a large current while having long service life. Disclosed are composite particles comprising: particles of lithium-containing phosphate; and carbon coating comprising at least one carbon material selected from the group consisting of (i) fibrous carbon material, (ii) chain-like carbon material, and (iii) carbon material produced by linking together fibrous carbon material and chain-like carbon material, wherein each particle is coated with the carbon coating. The fibrous carbon material is preferably a carbon nanotube with an average fiber size of 5 to 200 nm. The chain-like carbon material is preferably carbon black produced by linking, like a chain, primary particles with an average particle size of 10 to 100 nm. The lithium-containing phosphate is preferably LiFePO 4 , LiMnPO 4 , LiMn X Fe (1-X) PO 4 , LiCoPO 4 , or Li 3 V 2 (PO 4 ) 3 .

公开(公告)号：EP2782170B1

公开(公告)日：2017-03-22

申请号：EP12850167.3

申请日：2012-11-14

申请人： Denka Company Limited ,  SEI Corporation

发明人： KAWASAKI, Takashi ,  YOSHINO, Nobuyuki ,  MURATA, Hiroshi ,  SAWAI, Takehiko ,  SAITO, Shinji ,  URAO, Kazunori

IPC分类号： H01M4/58 ,  H01M4/136 ,  H01M4/36 ,  H01M10/052 ,  H01M10/0566 ,  C01B25/45 ,  C01B32/05 ,  H01M4/62

CPC分类号： H01M4/364 ,  B82Y30/00 ,  C01B25/45 ,  C01B32/05 ,  H01M4/136 ,  H01M4/366 ,  H01M4/5825 ,  H01M4/625 ,  H01M10/052 ,  H01M2004/021 ,  Y10S977/742 ,  Y10S977/948

公开(公告)号：EP3151319B1

公开(公告)日：2019-08-21

申请号：EP15800645.2

申请日：2015-07-17

申请人： SEI Corporation

发明人： SAWAI, Takehiko ,  SAITO, Shinji ,  URAO, Kazunori ,  NAKAGAWA, Jun ,  HANAI, Kazuma

IPC分类号： H01M4/62 ,  H01M4/58 ,  H01M10/0525

公开(公告)号：EP2492994A1

公开(公告)日：2012-08-29

申请号：EP10825002.8

申请日：2010-10-21

申请人： Sei Corporation

发明人： SAWAI, Takehiko ,  SAITO, Shinji ,  URAO, Kazunori

IPC分类号： H01M4/139 ,  H01M4/74 ,  H01M10/052 ,  H01M10/0566 ,  H01M10/0585 ,  H01M10/0587

CPC分类号： H01M10/058 ,  H01M4/0404 ,  H01M4/139 ,  H01M4/661 ,  H01M4/70 ,  H01M4/74 ,  H01M4/742 ,  H01M10/0431 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0566 ,  H01M10/0585 ,  H01M10/0587 ,  Y02E60/122 ,  Y02P70/54 ,  Y10T29/302

摘要： The present invention provides a method for producing a lithium secondary battery in which peeling of an active substance can be prevented and the generation of metal powder canbe prevented when a power collection foil is processed at an electrode production step. The method for producing the lithium secondary battery includes an electrode-producing step of producing a positive electrode and a negative electrode; a step of forming a group of electrodes by layering the positive electrode and the negative electrode on each other through a separator, or winding the positive electrode and the negative electrode through a separator; and a step of immersing the group of the electrodes in an electrolyte. The electrode-producing step has a boring step of forming a plurality of through-holes penetrating a power collection foil and having projected parts projected from at least a rear surface of the power collection foil and a mixed agent-forming step of forming a mixed agent layer on the power collection foil through which the through-holes have been formed. After the boring step finishes, the mixed agent-forming step is successively performed without winding the power collection foil through which the through-holes have been formed.

公开(公告)号：EP2492994B1

公开(公告)日：2018-10-10

申请号：EP10825002.8

申请日：2010-10-21

申请人： Sei Corporation

发明人： SAWAI, Takehiko ,  SAITO, Shinji ,  URAO, Kazunori

IPC分类号： H01M4/139 ,  H01M4/74 ,  H01M10/052 ,  H01M10/0587

CPC分类号： H01M10/058 ,  H01M4/0404 ,  H01M4/139 ,  H01M4/661 ,  H01M4/70 ,  H01M4/74 ,  H01M4/742 ,  H01M10/0431 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0566 ,  H01M10/0585 ,  H01M10/0587 ,  Y02E60/122 ,  Y02P70/54 ,  Y10T29/302

摘要： The present invention provides a method for producing a lithium secondary battery in which peeling of an active substance can be prevented and the generation of metal powder canbe prevented when a power collection foil is processed at an electrode production step. The method for producing the lithium secondary battery includes an electrode-producing step of producing a positive electrode and a negative electrode; a step of forming a group of electrodes by layering the positive electrode and the negative electrode on each other through a separator, or winding the positive electrode and the negative electrode through a separator; and a step of immersing the group of the electrodes in an electrolyte. The electrode-producing step has a boring step of forming a plurality of through-holes penetrating a power collection foil and having projected parts projected from at least a rear surface of the power collection foil and a mixed agent-forming step of forming a mixed agent layer on the power collection foil through which the through-holes have been formed. After the boring step finishes, the mixed agent-forming step is successively performed without winding the power collection foil through which the through-holes have been formed.

公开(公告)号：EP3151319A1

公开(公告)日：2017-04-05

申请号：EP15800645.2

申请日：2015-07-17

申请人： Sei Corporation

发明人： SAWAI, Takehiko ,  SAITO, Shinji ,  URAO, Kazunori ,  NAKAGAWA, Jun ,  HANAI, Kazuma

IPC分类号： H01M4/62 ,  H01G11/36 ,  H01G11/40 ,  H01G11/46 ,  H01G11/86 ,  H01M4/36 ,  H01M4/48 ,  H01M4/505 ,  H01M4/525 ,  H01M4/58 ,  H01M4/587 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0566 ,  H01M10/0585 ,  H01M10/0587

CPC分类号： H01M4/525 ,  H01G11/06 ,  H01G11/36 ,  H01G11/40 ,  H01G11/42 ,  H01G11/46 ,  H01G11/86 ,  H01M4/36 ,  H01M4/48 ,  H01M4/505 ,  H01M4/58 ,  H01M4/5825 ,  H01M4/587 ,  H01M4/62 ,  H01M4/623 ,  H01M4/625 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0566 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/0585 ,  H01M10/0587 ,  H01M2220/20 ,  H01M2300/004 ,  Y02E60/122 ,  Y02P70/54

摘要： The present invention provides an electrode material, for a lithium battery, which is capable of achieving a high-energy density and a high output and continuing its properties for many years, a method of producing the electrode material, and the lithium battery. The electrode material for use in positive and negative electrodes of a lithium battery is formed as a complex by combining a carbon-based conductive material and an electrode active material with each other. The carbon-based conductive material of the electrode material is subjected to hydrophilic treatment by using a gas containing fluorine gas. The electrode material is formed as the complex by calcining a mixture of the carbon-based conductive material subjected to the hydrophilic treatment and the electrode active material in the presence of fluororesin.

摘要翻译： 本发明提供一种用于锂电池的电极材料，其能够实现高能量密度和高输出并且持续多年的性能，电极材料的制造方法和锂电池。 用于锂电池的正极和负极的电极材料通过将碳基导电材料和电极活性材料彼此组合而形成为复合物。 通过使用含氟气体对电极材料的碳基导电材料进行亲水处理。 通过在氟树脂存在下煅烧亲水处理的碳系导电材料和电极活性物质的混合物，形成电极材料作为络合物。

公开(公告)号：EP2909879A1

公开(公告)日：2015-08-26

申请号：EP13849218.6

申请日：2013-10-21

申请人： Hydro-Quebec ,  Sei Corporation

发明人： GARIEPY, Vincent ,  GUERFI, Abdelbast ,  HANAI, Kazuma ,  HOVINGTON, Pierre ,  SAITO, Shinji ,  SAWAI, Takehiko ,  URAO, Kazunori ,  ZAGHIB, Karim

IPC分类号： H01M4/139 ,  H01M4/13 ,  H01M4/136 ,  H01M4/1397

CPC分类号： H01M4/625 ,  C01B25/45 ,  H01M4/366 ,  H01M4/485 ,  H01M4/5825 ,  H01M4/587 ,  H01M10/0525 ,  H01M2220/20 ,  Y02E60/122 ,  Y02P70/54 ,  Y02T10/7011

摘要： There is provided a method for producing an electrode material for a lithium-ion secondary battery. The method comprises the following steps: (a) mixing components of a basic ingredient or active substance of electrode material and a conductive carbon material to obtain a conductive carbon material-composited material; (b) mixing the conductive carbon material-composited material and a surface layer-forming material; an (c) burning the mixture obtained at step (b) to obtain the electrode material. Also, there is provided a lithium-ion secondary battery comprising an electrode which comprises the material according to the invention.

公开(公告)号：EP3142180B1

公开(公告)日：2020-05-13

申请号：EP15789893.3

申请日：2015-07-07

申请人： Sei Corporation

发明人： SAWAI, Takehiko ,  SAITO, Shinji ,  URAO, Kazunori

IPC分类号： H01M10/0525 ,  H01M2/16 ,  H01M4/13 ,  H01M4/136 ,  H01M4/1397 ,  H01M4/36 ,  H01M4/58 ,  H01M4/583 ,  H01M4/62 ,  H01M4/70 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/0585 ,  H01M10/0587 ,  H01M4/587 ,  H01M10/42 ,  H01M4/02